public void Run()
{
IsActive = true;
GraphicsDevice = CreateGraphicsDevice();
Initialize();
InitializeWorld();
_renderer = new Renderer(World, ResourceFactory, Framebuffer, GraphicsDevice.SubmitCommands);
_framebufferSizeProvider = new FramebufferSizeProvider(
World, GraphicsDevice.SwapchainFramebuffer.Width, GraphicsDevice.SwapchainFramebuffer.Height
);
var stopwatch = new Stopwatch();
stopwatch.Start();
while (IsActive)
{
_gameTime = new GameTime(TotalElapsedTime + stopwatch.Elapsed, stopwatch.Elapsed);
var deltaSeconds = _gameTime.ElapsedGameTime.TotalSeconds;
stopwatch.Restart();
while (LimitFrameRate && deltaSeconds < DesiredFrameLengthSeconds)
{
var elapsed = stopwatch.Elapsed;
_gameTime = new GameTime(TotalElapsedTime + elapsed, _gameTime.ElapsedGameTime + elapsed);
deltaSeconds += elapsed.TotalSeconds;
stopwatch.Restart();
// Don't gobble up all available cycles while waiting
var deltaMilliseconds = DesiredFrameLengthSeconds * 1000.0 - deltaSeconds * 1000.0;
if (deltaMilliseconds > 8)
{
Thread.Sleep(5);
}
else
{
Thread.SpinWait(100);
}
}
if (deltaSeconds > DesiredFrameLengthSeconds * 1.25)
{
_gameTime = GameTime.RunningSlowly(_gameTime);
}
_frameTimeAverager.AddTime(deltaSeconds);
Update(_gameTime);
if (!IsActive)
{
break;
}
Render(_gameTime);
}
}
